水噴射を備えた操作方法

Title:

水噴射を備えた操作方法

Document Type and Number:

Japanese Patent JP5877840

Kind Code:

B2

Abstract:

In an operating method for an internal combustion engine with direct fuel injection including a plurality of combustion chambers, in particular a direct-injection gasoline engine for a motor vehicle, wherein the operating method comprises low-NOx combustion (NAV) and uses a plurality of partial operating modes, wherein, in a NAV partial operating mode, water is injected into the respective combustion chamber, and, during said NAV partial operating mode, at an ignition point (ZZP), a largely homogeneous, lean fuel/exhaust gas/air mixture having a combustion air ratio of lambda>=1 is spark ignited by means of an ignition device so as to initiate flame front combustion (FFV) with a transition to a controlled auto-ignition (RZV). The injection of water permits the NAV partial operating mode to be stably implemented even at high engine loads and speeds.

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Inventors:

Torsten dealer
Dirk Hasse
Rudiger Helvek

Application Number:

JP2013532072A

Publication Date:

March 08, 2016

Filing Date:

October 06, 2011

Export Citation:

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Assignee:

Daimler AG

International Classes:

F02B11/00; F02D19/12; F02B23/10; F02D15/00; F02D41/02; F02D41/04; F02D45/00

Domestic Patent References:

JP2000204990A
JP2008184968A
JP2006002719A

Foreign References:

US20070062483

Attorney, Agent or Firm:

Hideo Akazawa

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